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Strong Lab White PTFE Coated Magnetic Stir Bar from China Suppliers - High-Quality Stirring Tools from Factory

Discover high-quality products from trusted China suppliers and factories. Our extensive range showcases the finest craftsmanship and innovative designs tailored to meet your needs. Partnering with leading suppliers in China, we ensure that every product adheres to rigorous quality standards and customer satisfaction. Explore our offerings today and experience the reliability that comes from working directly with top factories in China. Whether you're looking for consumer goods, electronics, or unique handcrafted items, our network of suppliers is committed to delivering excellence and value. Choose us for your next purchase and unlock the potential of sourcing from China's premier manufacturers
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    Product Details

    PTFE Magnetic Stir Bar
    • Polytetrafluoroethylene material
    • Super strong magnetic force
    • Non stick lubrication
    • Complete specifications
    PTFE Magnetic Stir Bar Type A
    Type A
    PTFE Magnetic Stir Bar Type B
    Type B
    PTFE Magnetic Stir Bar Type C
    Type C
    PTFE Magnetic Stir Bar Cross Shape
    Cross Shape
    PTFE Magnetic Stir Bar Gear Shape
    Gear Shape
    PTFE Magnetic Stir Bar H Shape
    H Shape
    PTFE Magnetic Stir Bar S Shape
    S Shape
    PTFE Magnetic Stir Bar Ball Shape
    Ball Shape
    PTFE Magnetic Stir Bar Color Type
    Color Type
    PTFE Magnetic Stir Bar Set
    PTFE Magnetic Stir Bar Set Collection
    Product Name: PTFE Magnetic Stir Bar
    Product Type: Type A(Egg Shape), Type B(Cylindrical Shape with Centre Pivot), Type C(Cylindrical Shape), Cross Shape, Gear Shape, H Shape, S Shape, Ball Shape, Color Type, Set A, Set B, Set C.
    Product Material: PTFE+Magnet（N35）
    Product Introduction: PTFE has good chemical resistance and can tolerate almost all chemical solvents. Appearance pure white, high temperature resistance -200~+250℃, short-term resistance to 300℃ on electric heating plate: low temperature resistance:-196°C can maintain an elongation of 5%, it needs to be used on asbestos mesh and should not be directly exposed to open flames. High lubrication: the lowest friction coefficient in solid materials, non adhesive: does not adhere to any substance; Strong self lubrication: The friction coefficient in solid materials is 0.04.
    Product Features: The PTFE Magnetic Stir Bar is made of refined PTFE and high-quality permanent magnetic steel, which has the advantages of wear resistance, high temperature resistance, chemical corrosion resistance, non toxicity, strong stirring force, stable operation, excellent manufacturing, novel style, scientific and beautiful appearance.
    Product Show
    • Strong magnetic force
    • High lubrication, non stick and non damaging to glass
    • Corrosion resistance
    PTFE Magnetic Stir Bar Product Details
    Type A Show
    Type A Show
    Type B Show
    Type B Show
    Type C Show
    Type C Show
    Cross Shape Show
    Cross Shape Show
    Gear Shape Show
    Gear Shape Show
    H Shape & S Shape Show
    H Shape / S Shape Show
    Color Type & Ball Shape Show
    Color / Ball Shape Show
    Type A Set Show
    Type A Set Show
    Type B Set Show
    Type B Set Show
    Type C Set Show
    Type C Set Show
    Packing Show
    PTFE Magnetic Stir Bar Packing Details
    Magnetic Stir Bar Specs
    Item Description Picture PN Spec Dia (mm) Length (mm) Weight(g)
    1 PTFE Magnetic Stir Bar Type A (Egg Shape) Egg Shape Stir Bar Spec B00101 A3*5 3 5 0.06
    B00102 A5*7 5 7 0.3
    B00103 A4*8 4 8 0.2
    B00104 A5*10 6 8 0.4
    B00105 A6*8 6 8 0.5
    B00106 A6*10 6 10 0.6
    B00107 A7*15 7 15 1.2
    B00108 A8*20 8 20 2.2
    B00109 A9*20 9 20 3
    B00110 A9*25 9 25 3.5
    B00111 A10*25 10 25 4.3
    B00112 A10*30 10 30 5.3
    B00113 A12*35 12 35 8.6
    B00114 A13*35 13 35 9.6
    B00115 A15*40 15 40 13.8
    B00116 A15*45 15 45 15.4
    B00117 A17*50 17 50 21.5
    B00118 A18*60 18 60 31.9
    B00119 A18*70 18 70 40
    B00120 A25*70 25 70 66.4
    B00121 A25*100 25 100 90
    2 PTFE Magnetic Stir Bar Type B (Cylindrical Shape with Centre Pivot) Pivot Stir Bar Spec B00201 B3*6 3 6 0.15
    B00202 B4*8 4 8 0.4
    B00203 B4*10 4 10 0.4
    B00204 B5*10 5 10 0.6
    B00205 B5*15 5 15 1.1
    B00206 B5*20 5 20 1.44
    B00207 B6*12 6 12 0.96
    B00208 B6*15 6 15 1.5
    B00209 B6*20 6 20 2.2
    B00210 B6*25 6 25 2.5
    B00211 B6*30 6 30 3.5
    B00212 B7*20 7 20 2.6
    B00213 B7*25 7 25 3.1
    B00214 B7*30 7 30 4
    B00215 B7*35 7 35 4.7
    B00216 B8*15 8 15 2.3
    B00217 B8*20 8 20 3.5
    B00218 B8*25 8 25 4.4
    B00219 B8*30 8 30 5.1
    B00220 B8*35 8 35 6.6
    B00221 B8*40 8 40 7.6
    B00222 B8*45 8 45 7.6
    B00223 B8*50 8 50 8.9
    B00224 B9*25 9 25 5
    B00225 B9*30 9 30 6.2
    B00226 B9*35 9 35 7.6
    B00227 B9*40 9 40 9.9
    B00228 B9*45 9 45 10
    B00229 B9*50 9 50 10.7
    B00230 B9*55 9 55 11.2
    B00231 B9*65 9 65 14.2
    B00232 B10*40 10 40 11.2
    B00233 B10*50 10 50 14.2
    B00234 B10*60 10 60 14.4
    B00235 B10*70 10 70 19.7
    B00236 B10*80 10 80 22.4
    B00237 B10*100 10 100 27.8
    B00238 B12*55 12 55 23.2
    3 PTFE Magnetic Stir Bar Type C (Cylindrical Shape) Cylindrical Stir Bar Spec B00301 C3*5 3 5 0.11
    B00302 C3*6 3 6 0.14
    B00303 C3*7 3 7 0.15
    B00304 C3*9 3 9 0.23
    B00305 C3*10 3 10 0.3
    B00306 C3*12 3 12 0.3
    B00307 C3*15 3 15 0.35
    B00308 C4*8 4 8 0.3
    B00309 C4*10 4 10 0.5
    B00310 C5*15 5 15 1
    B00311 C5*20 5 20 1.2
    B00312 C6*10 6 10 0.9
    B00313 C6*15 6 15 0.5
    B00314 C6*20 6 20 2.1
    B00315 C6*25 6 25 2.4
    B00316 C6*30 6 30 3.4
    B00317 C7*18 7 18 2.1
    B00318 C7*20 7 20 2.5
    B00319 C7*22 7 22 3
    B00320 C7*25 7 25 3
    B00321 C7*30 7 30 4
    B00322 C8*20 8 20 3.6
    B00323 C8*25 8 25 4.3
    B00324 C8*30 8 30 5.1
    B00325 C8*35 8 35 6.5
    B00326 C8*40 8 40 7.7
    B00327 C8*45 8 45 8
    B00328 C8*50 8 50 8.5
    B00329 C8*60 8 60 11.1
    B00330 C9*40 9 40 11.8
    B00331 C9*45 9 45 10
    B00332 C9*50 9 50 10.5
    B00333 C10*40 10 40 11.7
    B00334 C10*50 10 50 14.5
    B00335 C10*60 10 60 16.8
    B00336 C10*70 10 70 19.2
    B00337 C10*80 10 80 23.2
    B00338 C10*100 10 100 27.7
    B00339 C16*35 16 35 22
    4 PTFE Magnetic Stir Bar Type D (Cross Shape) Cross Shape Stir Bar Spec B00401 10*10 10 10 0.53
    B00402 15*15 15 15 3.3
    B00403 20*20 20 20 5.2
    B00404 25*25 25 25 8.6
    B00405 30*30 30 30 10
    B00406 35*35 35 35 13.4
    B00407 40*40 40 40 18.4
    5 PTFE Magnetic Stir Bar Type E (Gear Shape) Gear Shape Stir Bar Spec B00501 7*40 40 / 12.1
    6 PTFE Magnetic Stir Bar Type F (H Shape) H Shape Stir Bar Spec B00601 10*20 10 20 3.3
    B00602 12*26 12 26 5.8
    B00603 13*33 13 33 10
    B00604 13*40 13 40 13.7
    7 PTFE Magnetic Stir Bar Type G (S Shape) S Shape Stir Bar Spec B00701 10*10*25 10 25 5.4
    B00702 13*13*40 13 25 12.1
    B00703 15*15*50 13 25 19.9
    8 PTFE Magnetic Stir Bar Type H (Ball Shape) Ball Shape Stir Bar Spec B00801 12 12 12 2.5
    9 Color PTFE Magnetic Stir Bar Color Stir Bar Spec B00901 B8*25 8 25 4.2
    B00902 B8*25 8 25 4.2
    B00903 B8*25 8 25 4.2
    B00904 B8*25 8 25 4.2
    10 Glass Magnetic Stir Bar Glass Stir Bar Spec B01001 8*32 8 32 5.9
    B01002 8*40 8 40 7.5
    B01003 10*32 10 32 6.9
    11 PTFE Magnetic Stir Bar Set Type A Set A Spec B02001 A6*10, A7*15, A8*20, A10*25, A10*30, A10*30, A12*35, A15*40 / / 76
    12 PTFE Magnetic Stir Bar Set Type B Set B Spec B02002 B4*10, B6*15, B7*20, B7*25, B7*30, B8*30, B8*35 / / 46
    13 PTFE Magnetic Stir Bar Set Type C Set C Spec C4*10, C6*15, C7*20, C7*25, C7*30, C8*30, C8*35 / / 43
    Product Selection
    Shape selection
    Type A is suitable for use in round bottomed containers, Type B is suitable for flat bottomed containers. Type C is suitable for cylindrical containers with low concentration and concave convex flat bottoms.
    Length selection
    Generally, the length of the stirrer is selected based on 1/2 or 1/3 of the outer diameter of the container.
    Selection of diameter
    Determine based on the concentration of the stirred solution, and if the concentration is high, choose a larger diameter as much as possible.
    Frequently Asked Questions
    What are the primary advantages of PTFE material in magnetic stir bars?
    PTFE (Polytetrafluoroethylene) offers outstanding chemical resistance, allowing it to tolerate almost all chemical solvents. It has an extremely low friction coefficient (high lubrication), is non-adhesive, and features a wide operating temperature range from -200°C to +250°C.
    Can these PTFE magnetic stir bars be exposed to open flames?
    No, PTFE magnetic stir bars should not be directly exposed to open flames. When heating on an electric plate, they should be used on asbestos mesh to protect the stir bar and container.
    How do I choose between Type A, Type B, and Type C stir bars?
    Type A (Egg Shape) is ideal for round-bottomed containers. Type B (Cylindrical with Centre Pivot) is best for flat-bottomed containers. Type C (Cylindrical Shape) is suitable for flat or concave-convex bottomed cylindrical containers with low-concentration solutions.
    How do I determine the correct length and diameter for my stir bar?
    Typically, choose a stir bar length that is 1/2 or 1/3 of the container's outer diameter. For diameter, select a larger size if you are stirring high-concentration or high-viscosity solutions to ensure sufficient torque.
    What is the magnetic strength of these stir bars?
    These stir bars are built with high-quality N35 permanent magnetic steel, providing a super strong magnetic force that ensures stable operation and prevents decoupling during high-speed stirring.

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